Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are committed to achieving the zenith of precision manufacturing. Our craft is a harmonious blend of age-old expertise and futuristic innovation, ensuring that every creation is a testament to flawless artistry and precision. Our steadfast dedication to quality, combined with state-of-the-art technology, sets us apart, consistently delivering extraordinary results with each intricately crafted component. Our expertise in precision engineering is unparalleled, setting the benchmark for excellence in component manufacturing. With remarkable precision and sophisticated craftsmanship, we ensure outstanding quality in every aspect of our work, solidifying our position as industry pioneers. As pioneers of innovation, we set the gold standard in the design and delivery of revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across multiple industries, adeptly meeting the unique challenges of diverse applications, including:
- Medical and BiotechOur ultra-high-precision components and transformative solutions are meticulously engineered for advanced medical technologies, setting new benchmarks in the field.
- SemiconductorsWe elevate chip fabrication and associated equipment by providing essential, critical components that drive remarkable advancements and enhance efficiency in the semiconductor industry.
- New EnergyWe play a pivotal role in advancing innovative and sustainable development of next-generation energy equipment, contributing significantly to the future of energy solutions.
- AutomotiveWe supply crucial components that drive innovation within the automotive sector, enhancing the evolution of intelligent and electric vehicles, and shaping the future of mobility.
Main Products
- Our exquisitely crafted, non-standard customized components epitomize the pinnacle of precision and quality. Catering to crucial industries such as medical, automation, semiconductor, and automotive, we deliver unmatched excellence that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are bolstered by an awe-inspiring fleet encompassing over 300 of the industry's most advanced machinery units. This extensive and cutting-edge collection ensures our position at the forefront of innovation and adaptability. By consistently delivering revolutionary solutions, we set the gold standard for excellence, relentlessly driving toward unmatched precision and superior quality. These Top-Tier Branded Our pioneering machinery units are the bedrock of our precision-driven manufacturing operations, forming the vital infrastructure that supports our stringent production standards. By harnessing these state-of-the-art tools, we continuously enhance and elevate our manufacturing methodologies to achieve consistently remarkable outcomes. By deploying our high-caliber machines, we masterfully execute intricate and demanding machining requirements across diverse industries, attaining an unparalleled level of precision and efficiency. Our vast capabilities ensure unwavering compliance with the highest quality standards while offering bespoke customization that not only meets but exceeds the distinct needs of our esteemed clients, significantly surpassing their highest expectations.
- With a distinguished 20-year legacy, we draw upon a rich reservoir of manufacturing experience seamlessly fused with profound technical expertise and process mastery. This harmonious synergy guarantees not only exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and set new benchmarks of excellence within the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the ever-evolving sphere of innovation and precision, our commitment is not just to meet industry standards but to elevate them. We transcend traditional methodologies with pioneering prowess, establishing unmatched benchmarks that resonate through every stage of our meticulous production journey. Our dedication to setting revolutionary standards underscores our leadership in the industry.
Every raw material that enters our cutting-edge facility is subjected to an exhaustive evaluation process, setting unprecedented benchmarks in quality assurance. Our comprehensive approach encompasses detailed chemical composition analysis coupled with rigorous physical property assessments. We require our suppliers to provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring that only the premium materials are destined for our state-of-the-art medical machining services. This meticulous validation process reinforces the integrity and purity of materials, perfectly aligning with our steadfast commitment to delivering superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and a keen eye for detail, we relentlessly pursue perfection with steadfast dedication and commitment.
Throughout the intricate machining process, every component is subjected to meticulous scrutiny, ensuring that dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is essential for proactively identifying and intercepting potential defects, preventing any non-conforming parts from advancing further. Through this diligent strategy, we significantly mitigate the risk of producing substandard goods, consistently upholding exceptional quality at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of supreme excellence, embodying unmatched precision and foresight.
The First Article Inspection (FAI) process serves as the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before they escalate into widespread production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently attain the pinnacle of standards, embodying our unwavering commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our unwavering dedication to quality, ensuring that every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Founded with a visionary perspective in 2009, yet deeply rooted since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a paragon of innovation and excellence in the intricate world of high-precision component machining. For over two decades, our illustrious journey, fueled by an unwavering passion for the delicate artistry and stringent science of engineering, has consistently pushed the boundaries of innovation and precision. We have elegantly cemented our status as trailblazers in precision engineering, perpetually advancing the horizons of technical research and establishing remarkable benchmarks within the industry. Our dedication to surpassing expectations in both innovation and quality is unwavering. We have meticulously cultivated a level of technical prowess that places us at the forefront of the market, earning us a sterling reputation for unparalleled excellence. Our unmatched expertise in precision medical machining services consistently achieves the most stringent tolerances, delivering immaculate surface finishes that affirm our position as the premier choice within the medical sector. Our precision and steadfast reliability continue to garner unwavering trust and high regard, establishing us as the go-to name for top-tier machining solutions.
With four strategically located production bases, situated in the vibrant and thriving hubs of Shenzhen and Guiyang, and bolstered by an impressive team of over 400 highly skilled professionals, Donghui has intricately constructed a comprehensive, vertically integrated industry chain. This seamless chain links cutting-edge research and development, superior production, and flawless delivery. Our operations are designed to consistently meet and exceed the diverse requirements of our clients with extraordinary efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and pioneering innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)